Alpha Bridge AQSFP-40G-LR4

Features

  • Compliant with 40G Ethernet IEEE802.3ba and 40GBASE-LR4 Standard
  •  QSFP+ MSA compliant
  •  Compliant with QDR/DDR Infiniband data rates
  • Up to 11.2Gb/s data rate per wavelength
  • 4 CWDM lanes MUX/DEMUX design
  • Up to 10km transmission on single mode fiber (SMF)
  • Operating case temperature: 0 to 70°C
  • Maximum power consumption 3.5W
  • LC duplex connector
  • RoHS compliant

Applications

  • 40GBASE-LR4 Ethernet Links.
  • Infiniband QDR and DDR interconnects.
  • Client-side 40G datacom connections.

Absolute Maximum Ratings AQSFP-40G-LR4

Parameter Symbol Min Max Unit
Storage Temperature Ts -40 85 °C
Operating Case Temperature TOP 0 70 °C
Power Supply Voltage Vcc -0.5 3.6 V
Relative Humidity (non-condensation) RH 0 85 %
Damage Threshold, each Lane THd 4.5   dBm

Recommended Operating Conditions AQSFP-40G-LR4

Parameter Symbol Min Typical Max Unit
Operating Case Temperature TOP 0   +70 °C
Power Supply Voltage Vcc 3.135 3.3 3.465 V
Data Rate, each Lane     10.3125 11.2 Gb/s
Control Input Voltage High   2   Vcc V
Control Input Voltage Low   0   0.8 V
Link Distance with (OM3 MMF) D_MMF     150 m
Link Distance (SMF) D_SMF     2 km

Electrical Characteristics AQSFP-40G-LR4

Parameter Symbol Min Typical Max Unit Notes
Power Consumption       3.5 W  
Supply Current Icc     1.1 A  
Transceiver Power-on Initialization Time       2000 ms 1

Notes: Power-on initialization time is the time from when the power supply voltages reach and remain above the minimum recommended operating supply voltages to the time when the module is fully functional.

Optical Characteristics AQSFP-40G-LR4

Parameter           Symbol Min Typical Max Unit Notes
 Wavelength Assignment L0 1264.5 1271 1277.5 nm  
L1 1284.5 1291 1297.5 nm  
L2 1304.5 1311 1317.5 nm  
L3 1324.5 1331 1337.5 nm  

Digital Diagnostics Function AQSFP-40G-LR4

Parameter  Symbol Min Typical Max                   Unit
Temperature monitor absolute error DMI_Temp -3 3 °C Over operating temperature range
Supply voltage monitor absolute error DMI_VCC -0.1 0.1 V Over full operating range
Channel RX power monitor absolute error DMI_RX_Ch -2 2 dB 1
Channel Bias current monitor DMI_Ibias_Ch -10% 10% mA  
Channel TX power monitor absolute error DMI_TX_Ch -2 2 dB 1

Transmitter Electro-optical Characteristics AQSFP-40G-LR4

Parameter Symbol Min Typical Max Unit Notes
            Referred to
Single-ended Output Voltage   -0.3   4.0 V signal
            common
AC Common Mode Output Voltage       7.5 mV RMS
Differential Output Voltage Swing Vout,pp 300   850 mVpp  
Differential Output Impedance Zout 90 100 110 Ohm  
Termination Mismatch at 1MHz       5 %  
Differential Output Return Loss See IEEE 802.3ba 86A.4.2.1 dB 10MHz-11.1GHz
Common Mode Output Return Loss See IEEE 802.3ba 86A.4.2.2 dB 10MHz-11.1GHz
Output Transition Time   28   ps 20% to 80%
J2 Jitter Output Jo2   0.42 UI  
J9 Jitter Output Jo9   0.65 UI  
Eye Mask Coordinates 0.29, 0.5 UI Hit Ratio =
{X1, X2 150, 425 mV 5x10-5
Damage Threshold, each Lane THd 4.5   1
Total Average Receive Power (for SMF)     8.3  
Total Average Receive Power (for MMF)     9.5  
Average Receive Power, each Lane (for SMF)   -11.7 2.3  
Average Receive Power, each Lane (for MMF)   -7.0 3.5  
Receiver Reflectance RR   -26  
Receive Power (OMA), each Lane (for SMF)     3.5  
Receiver Power (OMA), each Lane (for MMF)     4.5  
Receiver Sensitivity (OMA), each Lane (for SMF)        
Receiver Sensitivity (OMA), each Lane (for MMF)        
Difference in Receive Power between any two lanes (OMA) Prx,diff 7.5 dB
LOS Assert LOSA -28 dBm
LOS Deassert LOSD   -15 dBm
LOS Hysteresis LOSH 0.5 dB

Receiver Electro-optical Characteristics AQSFP-40G-LR4

Parameter Symbol Min Typical Max Unit Notes
            Referred to
Single-ended Output Voltage   -0.3   4.0 V signal
            common
AC Common Mode Output Voltage       7.5 mV RMS
Differential Output Voltage Swing Vout,pp 300   850 mVpp  
Differential Output Impedance Zout 90 100 110 Ohm  
Termination Mismatch at 1MHz       5 %  
Differential Output Return Loss See IEEE 802.3ba 86A.4.2.1 dB 10MHz-11.1GHz
Common Mode Output Return Loss See IEEE 802.3ba 86A.4.2.2 dB 10MHz-11.1GHz
Output Transition Time   28   ps 20% to 80%
J2 Jitter Output Jo2   0.42 UI  
J9 Jitter Output Jo9   0.65 UI  
Eye Mask Coordinates 0.29, 0.5 UI Hit Ratio =
{X1, X2     150, 425   mV 5x10-5
Y1, Y2}
Damage Threshold, each Lane THd 4.5   dBM 1
Total Average Receive Power (for SMF)     8.3 dBM
Total Average Receive Power (for MMF)     9.5 dBM
Average Receive Power, each Lane (for SMF)   -11.7 2.3 dBM
Average Receive Power, each Lane (for MMF)   -7.0 3.5 dBM
Receiver Reflectance RR   -26 dBM
Receive Power (OMA), each Lane (for SMF)     3.5 dBM
Receiver Power (OMA), each Lane (for MMF)     4.5 dBM
Receiver Sensitivity (OMA), each Lane (for SMF)
Receiver Sensitivity (OMA), each Lane (for MMF)
Difference in Receive Power between any two lanes (OMA) Prx,diff 7.5 dB
LOS Assert LOSA -28   dBM
LOS Deassert LOSD   -15 dBm
LOS Hysteresis LOSH 0.5   dB

Block Diagram of Transceiver

  • This product converts the 4-channel 10Gb/s electrical input data into CWDM optical signals (light), by a driven 4- wavelength Distributed Feedback Laser (DFB) array. The light is combined by the MUX parts as a 40Gb/s data, propagating out of the transmitter module from the MMF. The receiver module accepts the 40Gb/s CWDM optical signals input, and de-multiplexes it into 4 individual 10Gb/s channels with different wavelength. Each wavelength light is collected by a discrete photo diode, and then outputted as electric data after amplified by a TIA and a post amplifier. Figures 1 and 2 show the functional block diagram of this product.
  • A single +3.3V power supply is required to power up this product. Both power supply pins VccTx and VccRx are internally connected and should be applied concurrently. As per MSA specifications the module offers 7 low speed hardware control pins (including the 2-wire serial interface): ModSelL, SCL, SDA, ResetL, LPMode, ModPrsL and IntL.
  • Module Select (ModSelL) is an input pin. When held low by the host, this product responds to 2-wire serial communication commands. The ModSelL allows the use of this product on a single 2-wire interface bus – individual ModSelL lines must be used.Serial Clock (SCL) and Serial Data (SDA) are required for the 2-wire serial bus communication interface and enable the host to access the QSFP+ memory map.
  • The ResetL pin enables a complete reset, returning the settings to their default state, when a low level on the ResetL pin is held for longer than the minimum pulse length. During the execution of a reset the host shall disregard all status bits until it indicates a completion of the reset interrupt. The product indicates this by posting an IntL (Interrupt) signal with the Data_Not_Ready bit negated in the memory map. Note that on power up (including hot insertion) the module should post this completion of reset interrupt without requiring a reset.
  • Low Power Mode (LPMode) pin is used to set the maximum power consumption for the product in order to protect hosts that are not capable of cooling higher power modules, should such modules be accidentally inserted.
  • Module Present (ModPrsL) is a signal local to the host board which, in the absence of a product, is normally pulled up to the host Vcc. When the product is inserted into the connector, it completes the path to ground through a resistor on the host board and asserts the signal. ModPrsL then indicates its present by setting ModPrsL to a “Low” state.
  • Interrupt (IntL) is an output pin. “Low” indicates a possible operational fault or a status critical to the host system. The host identifies the source of the interrupt using the 2-wire serial interface. The IntL pin is an open collector output and must be pulled to the Host Vcc voltage on the Host board.

Pin Assignment AQSFP-40G-LR4

PIN Logic Symbol Name/Description                Notes
1   GND Ground 1
2 CML-I Tx2n Transmitter Inverted Data Input  
3 CML-I Tx2p Transmitter Non-Inverted Data output  
4   GND Ground 1
5 CML-I Tx4n Transmitter inverted Data Input  
6 CML-I Tx4p Transmitter Non-Inverted Data output  
7   GND Ground 1
8 LVTLL-I ModSeIL Module Select  
9 LVTLL-I ResetL Module Reset  
10   VccRx +3.3V Power Supply Receiver 2
11 LVCMOS-I/O SCL 2-Wire Serial Interface Clock  
12 LVCMOS-I/O SDA 2-Wire Serial Interface Data  
13   GNC Ground  
14 CML-O Rx3p Receiver Non-Inverted Data output  
15 CML-O Rx3n Receiver Inverted Data output  
16   GND Ground 1
17 CML-O Rx1p Receiver Non-Inverted Data Output  
18 CML-O Rx1n Receiver Inverted Data Output  
19   GND Ground 1
20   GND Ground 1
21 CML-O Rx2n Receiver Inverted Data output  
22 CML-O Rx2p Receiver Non-Inverted Data output  
23   GND Ground 1
24 CML-O Rx4n Receiver Inverted Data output 1
25 CML-O Rx4p Receiver Non-Inverted Data output  
26   GND Ground 1
27 LVTTL-O ModPrsL Module Present  
28 LVTTL-O IntL Interrupt  
29   VccTx +3.3V Power Supply transmitter 2
30   Vcc1 +3.3V Power Supply 2
31 LVTTL-I LPMode Low Power Mode  
32   GND Ground 1
33 CML-I Tx3p Transmitter Non-Inverted Data Input  
34 CML-I Tx3n Transmitter Inverted Data Output  
35   GND Ground 1
36 CML-I Tx1p Transmitter Non-Inverted Data Input  
37 CML-I Tx1n Transmitter Inverted Data Output  
38   GND Ground 1
  • Notes: GND is the symbol for signal and supply (power) common for QSFP+ modules. All are common within the QSFP+ module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal common ground plane.
  • VccRx, Vcc1 and VccTx are the receiving and transmission power suppliers and shall be applied Vcc Rx, Vcc1 and Vcc Tx may be internally connected within the QSFP+ transceiver module in any combination. The connector pins are each rated for a maximum current of 500mA.

Optical Receptacle Cleaning Recommendations

All fiber stubs inside the receptacle portions were cleaned before shipment. In the event of contamination of the optical ports, the recommended cleaning process is the use of forced nitrogen. If contamination is thought to have remained, the optical ports can be cleaned using a NTT international Cletop® stick type and HFE7100 cleaning fluid.  Before the mating of patch-cord, the fiber end should be cleaned up by using Cletop® cleaning cassette.

Ordering Information AQSFP-40G-LR4

Model Number Part Number Voltage Temperature
AQSFP-40G-LR4 OPCS-X02-13-CB 3.3V 0°C to 70 °C
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